I'm starting a new project that has one 4-20mA output from a sensor. 4mA corresponds to one decimal value and 20mA corresponds to another decimal value. If for example my output it´s 8mA i have to know to what value is it... My problem it´s not that... My problem it's to do the best precision I-V conversion. I thought to use a simple configuration with the ampop with a 250 resistor, but i saw this 4-20mA to 0-5V configuration (more complicated) attatched.
I want to know your opinion about what configuration shoud i use or you have a better one?